diff --git a/package-lock.json b/package-lock.json
index 10962f5..1e7b246 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
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@@ -5871,13 +5905,11 @@
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-      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-1.1.2.tgz",
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-2.0.0.tgz",
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@@ -5997,9 +6029,9 @@
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-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
-      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==",
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-6.1.0.tgz",
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@@ -6248,14 +6280,14 @@
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-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.1.0.tgz",
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+      "version": "8.7.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-8.7.0.tgz",
+      "integrity": "sha512-gAojqb/m9Q8a5IV96E3fHJM70AzCkgt4uXYX2O7EmuyOnLrViCQlsEBmF9UQIu3/aeAIp2U17rtbpZWNntQqdg==",
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-        "lodash.sortby": "^4.7.0",
-        "tr46": "^1.0.1",
-        "webidl-conversions": "^4.0.2"
+        "lodash": "^4.7.0",
+        "tr46": "^2.1.0",
+        "webidl-conversions": "^6.1.0"
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@@ -6359,9 +6391,9 @@
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-      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA==",
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.8.tgz",
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diff --git a/package.json b/package.json
index a66f891..5019371 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
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     "chai": "4.2.0",
     "chai-as-promised": "7.1.1",
-    "jsdom": "15.1.1",
+    "jsdom": "16.5.0",
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     "json-loader": "0.5.4",
     "mocha": "8.1.3",